What are you trying to say?
Answer:
2 seconds
Explanation:
if a ball travels 1/2 meter per second, and there's 2 halfs in a whole, 1/2 meter per second x 2 halfs in a whole meter is 2 seconds to travel a meter
Answer:
-125 kj
Explanation:
A system internal energy increases by 250kj after an additional 375kj
Therefore the value of the work in process can be calculated as follows
= 250kj-375kj
= - 125 kj
Hence the value of the work in process is - 125 kj
Gravitational Potential Energy = mgh.
Where m = mass in kg.
g = acceleration due to gravity = 9.81 m/s2.
h = height in metres.
PE is in Joules
Potential Energy = 20 * 9.81*100 = 19620 J
